<?php
namespace app\common\enum;

class Invoice extends Base
{
	protected static $options = [0 => '否', 1 => '是'];

    public static function get_options() {
    	return static::$options;
    }

    public static function is($examine) {
    	return $examine === static::isSupport();
    }

    public static function notNum() {
    	return 0;
    }

    public static function isNum() {
        return 1;
    }
}